Derbyshire county council: Byelection on 16 June in Eckington division after the resignation of Labour councillor Steve Pickering, who has taken a politically restricted post. There is also a vacancy in Sawley division after the death of veteran Independent councillor Bill Camm. Both terms end in 2013.

Royal Borough of Kensington and Chelsea: There are two byelections on 9 June, both due to the deaths of Conservative councillors. They are Dr Iain Hanham (husband of former council leader and now Government minister Baroness Hanham) in Brompton ward, and Andrew Dalton in Queenâ€™s Gate ward. Both terms end in 2014.

Wandsworth borough council: Vacancy in Thamesfield ward due to the resignation of council leader Edward Lister, who has been appointed Chief of Staff to Boris Johnson and Deputy Mayor for Planning. Term ends 2014.

North East

Newcastle-upon-Tyne city council: Two wards have had their elections postponed from 5 May to 16 June due to the deaths of candidates. They are Byker (where the sitting councillor is Labour) and Westerhope (where the Liberal Democrat candidate Neil Hamilton died on polling day).

Sefton borough council: The all-party administration will continue for another year, with the Labour group leader serving as the Leader of the Council. There had been speculation that a Labour minority administration, or a Conservative-Liberal Democrat coalition, would be formed.

Reigate and Banstead borough council: The three councillors for Chipstead, Hooley and Woodmansterne ward (Richard Mantle, John Stevenson and Richard Wagner), together with Brian Cowle of Banstead Village ward, all of whom were elected as Conservatives, have formed the Downland Group on the council.

Surrey county council: Linda Kemeny was elected councillor for St Johns and Brookwood division on 19 May, holding the seat for her party.

Wokingham council: Vacancy in Remenham, Wargrave and Ruscombe ward after the resignation of Conservative councillor Claire Stretton, who has moved to Maidenhead and was elected as a councillor for Boyn Hill ward on the Royal Borough of Windsor and Maidenhead earlier this month. Term ends 2012.

Purbeck district council: Byelection on 7 July in Lytchett Matravers ward after the resignation of Liberal Democrat councillor Mark Gracey. Term ends 2014. The council remains under minority Liberal Democrat control after the Independent councillors sided with the Liberal Democrat group at the annual meeting.

Aberdeen city council: Neil MacGregor, candidate of the Scottish National Party, was elected councillor for Dyce/Bucksburn/Danestone ward on 19 May. He gains the seat from the Liberal Democrats. There is another byelection on 23 June in Airyhall/Broomhill/Garthdee ward after the resignation of Scott Cassie, who was elected as a Liberal Democrat but sitting as an Independent after being charged with fraud. Both terms end 2012.

Falkirk council: Byelection on 9 June in Boâ€™ness and Blackness ward after the death of Scottish National Party councillor John Constable. Term ends 2012.

Highland council: Byelection in Tain and Easter Ross ward on 9 June, after the death of Alan Torrance who was elected as an Independent but had joined the Scottish National Party group. Term ends 2012.